204 Open source projects that are alternatives of or similar to crystal-two-factor-auth

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HMAC-based (HOTP) and Time-based (TOTP) One-Time Password manager. Works with Google Authenticator for Two-Factor Authentication.

Python implementation of the mobile Blizzard Authenticator (TOTP)

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Generate 2FA tokens compatible with Google Authenticator

A free, secure and open source app for Android to manage your 2-step verification tokens.

A One Time Password Authentication package, compatible with Google Authenticator.

🔐 multi factor authentication system (2FA, MFA, OTP Server)

Golang two factor authentication library

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One Time Password (HOTP/TOTP) library for Node.js, Deno and browsers.

Extract two-factor authentication (2FA, TFA) secret keys from export QR codes of "Google Authenticator" app

Two-factor authenticator via Google Authenticator app.

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One-step (secure) configuration for Traefik edge router.

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OOTP (Open One-time Password) is a supports multiple programming languages. The generated one-time passwords are fully compliant with HOTP (HMAC-based One-time Password) and TOTP (Time-based One-time Password). 🚀It's easy to use!

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Two Factor Authentication Java code implementing the Time-based One-time Password Algorithm